noexcept operator (ya que C + +11)

 

C++

Idioma

Conceptos

Utilidades de la biblioteca

Strings biblioteca

Contenedores biblioteca

Algoritmos biblioteca

Los iteradores biblioteca

Numéricos biblioteca

Entrada / salida de la biblioteca

Localizaciones biblioteca

Expresiones biblioteca Regular (C++11)

Operaciones de biblioteca Atómica (C++11)

Tema Biblioteca de ayuda (C++11)

 

Lenguaje C++

Los temas generales Original: General topics The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
Preprocessor Comentarios Palabras clave	Tabla ASCII Las secuencias de escape Historia de C++
Control de flujo Original: Flow control The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
Sentencias condicionales ejecución Original: Conditional execution statements The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
if statement	switch statement
Instrucciones de iteración Original: Iteration statements The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
for loop range-for loop (C++11)	while loop do-while loop
Ir declaraciones Original: Jump statements The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
continue statement break statement	goto statement return statement
Funciones Original: Functions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
declaración de la función
lambda declaración de la función
función de plantilla
especificador inline
especificaciones de excepción (obsoleto)
noexcept especificador (C++11)
Excepciones Original: Exceptions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
tirar expresión	bloque try-catch
Los espacios de nombres Original: Namespaces The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
espacio de nombres declaración	alias de espacios de nombres
Tipos Original: Types The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
tipos fundamentales tipos de compuestos los tipos de enumeración	tipos de unión tipos de funciones
decltype specifier (C++11)
Los especificadores Original: Specifiers The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
cv especificadores
almacenamiento duración especificadores
constexpr especificador (C++11)
auto especificador (C++11)
alignas especificador (C++11)
Inicialización Original: Initialization The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
predeterminado de inicialización valor de inicialización cero de inicialización copiar inicialización inicialización directa	inicialización de agregados lista de inicialización (C++11) inicialización constante referencia de inicialización

Los literales Original: Literals The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
literales enteros Los literales de caracteres Los literales de punto flotante literales de cadena	Los literales booleanos nullptr (C++11) definido por el usuario (C++11)
Expresiones Original: Expressions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
categorías de valor orden de evaluación	los operadores prioridad de los operadores
representaciones alternativas
Utilidades Original: Utilities The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
Tipos Original: Types The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
typedef declaration
alias de tipo de declaración (C++11)
atributos (C++11)
Lanza Original: Casts The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
conversiones implícitas
const_cast conversion
static_cast conversion
dynamic_cast conversion
reinterpret_cast conversion
C-cast estilo y funcional
De asignación de memoria Original: Memory allocation The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
new expression	delete expression
Clases Original: Classes The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
clase de declaración this pointer acceder a los especificadores	amigo especificador listas de inicializadores
Clase propiedades específicas de la función Original: Class-specific function properties The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
función virtual anular especificador (C++11) último especificador (C++11)	explícita (C++11) estático
Funciones especiales miembro Original: Special member functions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
default constructor copiar constructor mover constructor (C++11)	copiar asignación mover asignación (C++11) destructor
Plantillas Original: Templates The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
clase de plantilla
función de plantilla
plantilla de especialización
paquetes de parámetros (C++11)
Varios Original: Miscellaneous The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
Montaje en línea

 

El operador noexcept realiza una comprobación en tiempo de compilación que devuelve verdadero si una expresión es declarado no lanzar ninguna excepción .

Original:

The noexcept operator performs a compile-time check that returns true if an expression is declared to not throw any exceptions.

The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

Puede ser utilizado en <div class="t-tr-text"> noexcept especificador

Original:

noexcept specifier

The text has been machine-translated via [http://translate.google.com Google Translate].
You can help to correct and verify the translation. Click [http://en.cppreference.com/w/Cppreference:MachineTranslations here] for instructions.

una plantilla de función para declarar que la función excepciones para algunos pero no a otros tipos .

Original:

It can be used within a function template's

noexcept especificador

Original:

noexcept specifier

The text has been machine-translated via [http://translate.google.com Google Translate].
You can help to correct and verify the translation. Click [http://en.cppreference.com/w/Cppreference:MachineTranslations here] for instructions.

</div> to declare that the function will throw exceptions for some types but not others.

The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

Sintaxis

noexcept( expression )

Devuelve un objeto de tipo bool .

Original:

Returns an object of type bool.

The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

Explicación

El operador noexcept no expression evaluar. El resultado es false si la expression contiene al menos una de las siguientes construcciones potencialmente evaluados:

Original:

The noexcept operator does not evaluate expression. The result is false if the expression contains at least one of the following potentially evaluated constructs:

The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

• llamar a cualquier tipo de función que no tiene que no lanza especificación de excepciones, a menos que sea un <div class="t-tr-text"> expresión constante

  Original:

  constant expression

  The text has been machine-translated via [http://translate.google.com Google Translate].
  You can help to correct and verify the translation. Click [http://en.cppreference.com/w/Cppreference:MachineTranslations here] for instructions.
  .
  Original:

  call to any type of function that does not have non-throwing exception specification, unless it is a

  expresión constante

  Original:

  constant expression

  The text has been machine-translated via [http://translate.google.com Google Translate].
  You can help to correct and verify the translation. Click [http://en.cppreference.com/w/Cppreference:MachineTranslations here] for instructions.

  </div>.

  The text has been machine-translated via Google Translate.
  You can help to correct and verify the translation. Click here for instructions.
• throw expresión

  Original:

  throw expression

  The text has been machine-translated via Google Translate.
  You can help to correct and verify the translation. Click here for instructions.
• dynamic_cast expresión cuando la conversión necesita una comprobación tiempo de ejecución

  Original:

  dynamic_cast expression when the conversion needs a run time check

  The text has been machine-translated via Google Translate.
  You can help to correct and verify the translation. Click here for instructions.
• typeid expresión al tipo de argumento es de tipo clase polimórfica

  Original:

  typeid expression when argument type is polymorphic class type

  The text has been machine-translated via Google Translate.
  You can help to correct and verify the translation. Click here for instructions.

En todos los demás casos, el resultado es true .

Original:

In all other cases the result is true.

The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

Palabras clave

noexcept

Ejemplo

template <class T>
void self_assign(T& t) noexcept(noexcept(T::operator=)) 
{ // self_assign is noexcept if and only if T::operator= is noexcept
    t = t;
}

Ver también

noexcept especificador	requiere una función de no arrojar ningún (C++11) excepciones Original: requires a function to not throw any exceptions (C++11) The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
salvo especificación	especifica qué excepciones se producen por un (obsoleto) función Original: specifies what exceptions are thrown by a function (obsoleto) The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.